the-btfash-foundation/tmux-mem-cpu-load
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Adhere to the styling guide, added enum for memory modes, refractored memory mode if block to use switch instead and added test cases for free memory and user percentage memory modes

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This commit is contained in:
cousine 2016-02-10 22:49:49 +02:00
parent 0e89998ee4
commit 635334b141
4 changed files with 44 additions and 16 deletions
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8
CMakeLists.txt
View File

@ -123,6 +123,14 @@ if(BUILD_TESTING)
COMMAND tmux-mem-cpu-load 2 8
)
add_test(NAME memory_mode_free_memory
COMMAND tmux-mem-cpu-load -m 1
)
add_test(NAME memory_mode_used_percentage
COMMAND tmux-mem-cpu-load -m 2
)
set_tests_properties(usage
invalid_status_interval
invalid_graph_lines

2
common/main.cc
View File

@ -93,7 +93,7 @@ int main( int argc, char** argv )
unsigned cpu_usage_delay = 990000;
short graph_lines = 10; // max 32767 should be enough
bool use_colors = false;
int mem_mode = 0;
int mem_mode = MEMORY_MODE_DEFAULT;
static struct option long_options[] =
{

7
common/memory.h
View File

@ -16,6 +16,13 @@
* limitations under the License.
*/
enum
{
MEMORY_MODE_DEFAULT,
MEMORY_MODE_FREE_MEMORY,
MEMORY_MODE_USAGE_PERCENTAGE
};
#ifndef MEMORY_H_
#define MEMORY_H_

43
osx/memory.cc
View File

@ -33,6 +33,8 @@ std::string mem_string( bool use_colors, int mode )
u_int64_t total_mem;
float used_mem;
float percentage_mem;
float free_mem;
float free_mem_in_gigabytes; // used to check if free mem < 1 GB
//u_int64_t unused_mem;
vm_size_t page_size;
@ -61,25 +63,36 @@ std::string mem_string( bool use_colors, int mode )
oss << mem_lut[( 100 * static_cast<u_int64_t>(used_mem) ) / total_mem];
}
percentage_mem = static_cast<float>(used_mem) / static_cast<float>(total_mem) * 100.0;
// Change the percision for floats, for a pretty output
oss.precision( 2 );
oss.setf( std::ios::fixed | std::ios::right );
if( mode == 0 ) {
oss << convert_unit( used_mem, MEGABYTES ) << '/'
<< convert_unit( total_mem, MEGABYTES ) << "MB";
} else if ( mode == 1 ) {
float free_mem = total_mem - used_mem;
switch( mode )
{
case MEMORY_MODE_FREE_MEMORY: // Show free memory in MB or GB
free_mem = total_mem - used_mem;
free_mem_in_gigabytes = convert_unit( free_mem, GIGABYTES );
if( free_mem < 1 ) {
oss << convert_unit( free_mem, MEGABYTES ) << "MB";
} else {
oss << convert_unit( free_mem, GIGABYTES ) << "GB";
}
} else {
oss << percentage_mem << '%';
// if free memory is less than 1 GB, use MB instead
if( free_mem_in_gigabytes < 1 )
{
oss << convert_unit( free_mem, MEGABYTES ) << "MB";
}
else
{
oss << free_mem_in_gigabytes << "GB";
}
break;
case MEMORY_MODE_USAGE_PERCENTAGE:
// Calculate the percentage of used memory
percentage_mem = used_mem /
static_cast<float>( total_mem ) * 100.0;
oss << percentage_mem << '%';
break;
default: // Default mode, just show the used/total memory in MB
oss << convert_unit( used_mem, MEGABYTES ) << '/'
<< convert_unit( total_mem, MEGABYTES ) << "MB";
}
if( use_colors )